Collect coverage only once per Selenium Server version #225

Job	Run time
Static analysis	14s
Static analysis	14s
Check composer.json	11s
Check composer.json	11s
Tests (PHP 7.2, Selenium 2.53.1)	1m 42s
Tests (PHP 7.2, Selenium 2.53.1)	1m 42s
Tests (PHP 7.3, Selenium 2.53.1)	2m 0s
Tests (PHP 7.3, Selenium 2.53.1)	2m 0s
Tests (PHP 7.4, Selenium 2.53.1)	1m 29s
Tests (PHP 7.4, Selenium 2.53.1)	1m 29s
Tests (PHP 8.0, Selenium 2.53.1)	1m 49s
Tests (PHP 8.0, Selenium 2.53.1)	1m 49s
Tests (PHP 8.1, Selenium 2.53.1)	1m 35s
Tests (PHP 8.1, Selenium 2.53.1)	1m 35s
Tests (PHP 8.2, Selenium 2.53.1)	1m 33s
Tests (PHP 8.2, Selenium 2.53.1)	1m 33s
Tests (PHP 8.3, Selenium ) with coverage	5m 10s
Tests (PHP 8.3, Selenium ) with coverage	1m 55s
Tests (PHP 8.3, Selenium 3.141.59) with coverage	2m 1s
Tests (PHP 8.3, Selenium 3.141.59) with coverage	2m 1s
	32m 13s

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